Just watched the ME-TV episode about the Mayberry High reunion. The very end scene was Andy and Barney singing the school song one more time and having a discussion after. I do not recall ever seeing that ending, probably a result of all the editing for commercials at other times. Interseting to see it.
Every now and then I see an epilogue I don't remember and even more often a prologue. I think I was probably dashing in, drying my dish-pan hands, as the show started and so missed the beginning.
The networks do cut the epilogues a lot and that's often the biggest laugh of all.
Money grubbing spinsters they are!
If you subscribe to Netflix you get the whole show (all 28 mins.) with the missing segments that were cropped out for more commercial time. The best way to watch TAGS by far. You'll see a lot of things you've never seen if you're watching it on ME TV or other cable channel.